GÁL, Z.; RÁCZ, S. Research and development (R&D) activity in the Carpathian area. Discussion Papers, [S. l.], n. Special, p. 148–162, 2012. Disponível em: https://discussionpapers.rkk.hu/index.php/DP/article/view/2424. Acesso em: 25 may. 2022.